A neighbour said: “There were about 10 police cars, including unmarked cars here on Saturday from 8am until after midnight.
“It was a very big operation and they appeared to be searching the house, the garage, the garden and a car.”

The second property to be searched was in a village just outside Northallerton.

A neighbour said: “There were four police cars and a van parked here all weekend, they seemed to be searching a house.

“The family have a son who is around 14 and he has been in some bother at school recently.

“It was a big police operation and it went on for quite a while so we knew it had to be something serious but this is the last place you’d expect anything to do with terrorism.”

Police are currently investigating if any offences have been committed

A West Yorkshire Police spokesman said: “We understand people may have concerns as a result of this activity and we are grateful for the patience and understanding of the public while these enquiries are carried out.”

A CTU spokesman said: “Both boys were arrested as part of an ongoing police led investigation.

“Since the weekend searches have taken place at a number of locations in the Northallerton area.

“These include searches at three residential properties, which have now concluded.”

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